Machine for sewing mats for hothouses and the like



e. ARBIN. MACHINE FOR SEWING MATS FOR HOTHOUSES AND THE LIKE.

APPITICATJON FILED SEPT. 16, 1913- I 1,41 3,5 1 1. Patented Apr- 18, 1922.

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efAaslNw MACHINE FOR SEWING MAIS FOR HOTHOUSES AND THE LIKE.

APPLICATION FILED SEPT. 16, 1913- 1,41 3,5 1 1 Patented Apr. 18, 1922.

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GEORGES ARBIN, 0F BONDY, FRANCE, ASSIGNOR TO SOCIETE ARBIN' FRERES &

GUEUDRE, OF BREVANN ES, FRANCE, A CORPORATION OF FRANCE.

MACHINE FOR SEWING MATS FOR HOTHOUSES AND THE LIKE.

Specification of Letters Patent. Patented Apr. 18, 1922.

Application filed September 16, 1913. Serial No. 790,131.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. I.., 1313.)

To aZLwhom it may concern Be it known that I, GEORGES ARBIN, a citizen of the Republic of France, residing at Bondy, France, have invented certain new and useful Improvements in Machines for Sewing Mats for Hothouses and the like; and do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for sewing'mats' for use in hothouses and the like. The object is to provide a machine which may be employed instead of a loom, and which will replace the warp .threads of the loom by several chain stitched seams spaced apart at suitable distances.

In the accompanying drawing- Figure 1 is a front elevation of the machine, and r Figure 2 a side elevation.

The machine comprises a frame 1 provided with supporting legs. At the front of the machine are arranged straps or endless belts 2 wound on pulleys 3, the spindles of .which are supported by bearings 4 suitably secured to the frame- '1; These'belts are arranged in pairs, one of the belts of each pair being above theother, as clearly shown in the drawing.

Below the upper belts 2, and toward the rear of the machine, are arranged endless chains 5 mounted in the extension ofi the lower belts 2 and provided outside with points 6 slightly bent towards their ends.

.To each end of the frame 1 is secured a vertical bracket 7, and these two brackets are connected together at difl'erent points of their height by horizontal stays 8 on which are mounted supports 9 which can longitudinally move in the same and be secured in any desired position. Each of the said sup ports 9' terminates in front in a vertical sleeve 10 forming aguide for a needle holder...

11 similar to that of ajsewing machine, and carrying at its lower end a needle 12.

The. spools 13 carrying the thread are arranged on the upper stay 8 and are so mounted as to permit the tension of the thread to be regulated. To that end, each spool 13 rests on a spring 14 surrounding the 7 vertical pin, 15 on which it can rotate, and

a nut 16 with a lock nut 17 are screwed on the upper screw -threaded end of the said pin 15, which enables the spool to be pressed more or less strongly on the spring, for checking the movement of the spool.

Each thread passes through a thread guide 18 mounted on a corresponding support 9, and through another thread guide 19 ar ranged at the upper portion of the needle holder 11, from which it descends vertically in order to pass through the eye of the needle 2.

The frame 1 is provided with a driving spindle '20 to which is keyed a cam 21, and with the said cam engages a roller 22 mounted on a lever 23. The lever 23 is connected by means of a rod 24. to another lever 25 carrying a pawl 26 intended toengage with the teeth of a ratchet wheel 27 keyed to the spindle 28 carrying one of the series of toothed pinions 29 on which are wound the chains 5. -It will be seen that, when owing to the action of the cam 21, the roller 22 is raised and lowered alternately with the lever 23, the lever 25 is given a similar movement, and the pawl 26 rotates the ratchet wheel 27 as well as the spindle 28 and the pinion 29 carried by the latter, in a given direction. The movement of rotation is transmitted to the other pinions 29 by the chains 5 themselves.

The spindle 20 carries a second .cam 30 acting on a lever 31 keyed to a spindle 32 on which are mounted other levers 33 approximately arranged vertically and each terminating in a hook 34: forming a looper. Owing to the movement of the cam 30, the levers .33 are given an oscillating motion, and the loopers 34: are ,reciprocatcd. These loopers are respectively arranged below and resting on the vertical supports 7. On

the spindle 39 are arranged other levers 40 which can be longitudinally moved on the same and secured each in a given position. Each of these levers is connected by a rod 41 to one of the needle-holders 11, and when the lever 36 is rotated by the spindle 20,

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it transmits by means of the rod 37 an oscillating motion to the lever 38 which, by means of the spindle 39, transmits a similar motion to the-lever 40, which. by means. of the rods 41, transmits a'vertical reciprocating motion to the' needle-holders 11. To the spindle 39 is keyed a balance weight lever 42 balancing the needle-holders 11.

The spindle 20 receives its movement from a suitable line shaft by means of a belt, and is provided to that end at one of its ends with a fast pulley 43 and a loose pulley 44 which enables the machine to be started or stopped at will.

Above the chains 5 are arranged tables 45 with vinclined planes, terminating at the back, near the space between the rolls .46 and 47 arranged above each other and mounted respectively on spindles 48 and 49 suitably supported by the frame of .the ma- These rolls 46 and 47 can move longitudinally on their respective spindles and be secured to the latter in a given position. The upper spindle 48 is driven from the spindle 20 by means of a chain 50 and toothed pinions 51 and, 52 keyed respectively tothe spindles'ZQ and 48; the bottom spindle 49 is driven by the spindle 48 by means of toothed pinions 53 and 54 keyed respectively to the said spindles, The pinion 54 is of a larger diameter than that of the pinion 53, for rotating roller 47 at a reduced speed compared with the upper roll 46. Finally, near the ends of the spindles carrying the endless belts, are arranged circular knives 55 and 56, the position of which can be adjusted at will.

The strawto be sewn, to form the mats, is placed on the endless straps or belts 2, between the pairs of which it passes in order to be brought to the chains 5,'which distribute it in a uniform manner. The needles 12 are periodically lowered as explained, and the loopers 34 are operated for making the stitches and for completing the seams. One seam may be in the middle of the mat and there may be one at each side.

The mat thus sewn is driven by the points 6 on the tables 45, and up the inclined planes of these tables, in order that it may be re-. leased from points 6. It passes finally be- .tween the rolls 46 and 47 which'drive it completely finished out of the machine,

while the circular knives 55 and 56 cut the straws at each side', so as to give the mat a uniform width.

With this machine it is possible to manufacture mats of various widths as the knives 55 and 56 as well as the needle-holders 11, the loopers 34 and'the other parts taking part in the manufacture of the mat can be shifted, all these parts being adjustable. In the same way, the number of-seams can be varied at will by arranging on the stays 8 a suitable number of needle-holders, and on spindle 39 a corresponding number of levers 40 for operating the said needle-holders by means of connecting rods 41.

Having now particularly described and ascertained the nature of my said invention ,table, and single means for operating the looping member and the conveying devices.

2. In a machine of the class described, a frame, a plurality of conveying devices carried thereby, engaging devices thereon, a table associated with each conveying device,

arranged for elevating a mat out of enga ement with the engaging devices, means or driving the conveying devices, means for mounting a needle above the conveying devices,'and 'a looping member operated by the-driving means and having one end disposed at the end of an adjacent table.

I 3. In a machine for sewing mats of straw, a traveling conveyer provided with points for receiving and conveying straws-arranged transversely thereon, a lower endless band arranged to deliver straw sidewise to the conveyer, a plurality of endless bands disposed above said lower band and. adapted to cooperate therewith to carry straw between their adjacent plies, the receiving end of the lower band extending beyond the receiving end of the overlying bands and the delivery end of the latter overlying the receiving end of said conveyer, and sewing mechanism disposed in position to operate on the straw that is held between the conveyer and the delivery end of the upper bands.

In testimony whereof I have hereunto signed my name in the presence of the two subscribed witnesses.

GEORGES ARBIN. Witnesses: I

EDMOND. JACQUOT, HANSON C. Coxn. 

